chris
746868d720
git-subtree-dir: main-site git-subtree-mainline: 4d1daa39101c0a85ca6d916f1c31139faf39632a git-subtree-split: 5cefb4d1618bc54ae0e86830421a8c911900302c
81 lines
1.4 KiB
JavaScript
81 lines
1.4 KiB
JavaScript
var tape = require('tape')
|
|
var pager = require('./')
|
|
|
|
tape('get page', function (t) {
|
|
var pages = pager(1024)
|
|
|
|
var page = pages.get(0)
|
|
|
|
t.same(page.offset, 0)
|
|
t.same(page.buffer, Buffer.alloc(1024))
|
|
t.end()
|
|
})
|
|
|
|
tape('get page twice', function (t) {
|
|
var pages = pager(1024)
|
|
t.same(pages.length, 0)
|
|
|
|
var page = pages.get(0)
|
|
|
|
t.same(page.offset, 0)
|
|
t.same(page.buffer, Buffer.alloc(1024))
|
|
t.same(pages.length, 1)
|
|
|
|
var other = pages.get(0)
|
|
|
|
t.same(other, page)
|
|
t.end()
|
|
})
|
|
|
|
tape('get no mutable page', function (t) {
|
|
var pages = pager(1024)
|
|
|
|
t.ok(!pages.get(141, true))
|
|
t.ok(pages.get(141))
|
|
t.ok(pages.get(141, true))
|
|
|
|
t.end()
|
|
})
|
|
|
|
tape('get far out page', function (t) {
|
|
var pages = pager(1024)
|
|
|
|
var page = pages.get(1000000)
|
|
|
|
t.same(page.offset, 1000000 * 1024)
|
|
t.same(page.buffer, Buffer.alloc(1024))
|
|
t.same(pages.length, 1000000 + 1)
|
|
|
|
var other = pages.get(1)
|
|
|
|
t.same(other.offset, 1024)
|
|
t.same(other.buffer, Buffer.alloc(1024))
|
|
t.same(pages.length, 1000000 + 1)
|
|
t.ok(other !== page)
|
|
|
|
t.end()
|
|
})
|
|
|
|
tape('updates', function (t) {
|
|
var pages = pager(1024)
|
|
|
|
t.same(pages.lastUpdate(), null)
|
|
|
|
var page = pages.get(10)
|
|
|
|
page.buffer[42] = 1
|
|
pages.updated(page)
|
|
|
|
t.same(pages.lastUpdate(), page)
|
|
t.same(pages.lastUpdate(), null)
|
|
|
|
page.buffer[42] = 2
|
|
pages.updated(page)
|
|
pages.updated(page)
|
|
|
|
t.same(pages.lastUpdate(), page)
|
|
t.same(pages.lastUpdate(), null)
|
|
|
|
t.end()
|
|
})
|